| 摘要 |
The present invention provides a system for determining downhole conditions including a time domain reflectometer ( 172 ) that is operable to generate a transmission signal and receive a reflected signal. A tubular ( 192 ) is positioned downhole in a downhole medium ( 214, 216, 218, 220, 222 ) and a waveguide ( 186 ), which is in electrical communication with the time domain reflectometer ( 172 ), is operably contacting the downhole ( 214, 216, 218, 220, 222 ). The waveguide ( 186 ) is operable to propagate the transmission signal and operable to propagate the reflected signal that is generated responsive to an electromagnetic property of the downhole medium ( 214, 216, 218, 220, 222 ).
|
